In theory the Duke of Beaufort and his male–line relatives should carry the Plantagenet Y-chromosome, because although they do not bear the surname PLANTAGENET, they are, in theory, direct (but illegitimate) male-line descendents of John of Gaunt, via the Beaufort Dukes of Somerset. Details of all the living male members of the Somerset family were given to Leicester University in 2012, and work on the attempt to establish the Plantagenet Y-chromosome is ongoing.